CVE-2026-49740

published 2026-06-09

CVE-2026-49740: TYPO3's cache frontend (VariableFrontend) and persistent key-value store (Registry) deserialized PHP payloads without integrity validation or class…

Priority P3 36 medium 6.3 CVSS 4.0

AV L AC L AT N PR L UI N VC N VI L VA N SC H SI H SA H E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

TYPO3's cache frontend (VariableFrontend) and persistent key-value store (Registry) deserialized PHP payloads without integrity validation or class restrictions. An attacker with write access to the underlying storage backend (cache store or sys_registry database table) could inject a crafted serialized payload to trigger PHP Object Injection, potentially exploiting a gadget chain to achieve Remote Code Execution or other high-impact effects. Exploiting this vulnerability requires direct local write access to the storage, such as the SQL database or file system. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 and 14.0.0-14.3.3.

Affected

10 ranges

Vendor	Product	Version range	Fixed in
typo3	cms-core	>= 0 < 10.4.57	10.4.57
typo3	cms-core	>= 11.0.0 < 11.5.51	11.5.51
typo3	cms-core	>= 12.0.0 < 12.4.46	12.4.46
typo3	cms-core	>= 13.0.0 < 13.4.31	13.4.31
typo3	cms-core	>= 14.0.0 < 14.3.3	14.3.3
typo3	typo3_cms	< 10.4.57	10.4.57
typo3	typo3_cms	>= 11.0.0 < 11.5.51	11.5.51
typo3	typo3_cms	>= 12.0.0 < 12.4.46	12.4.46
typo3	typo3_cms	>= 13.0.0 < 13.4.31	13.4.31
typo3	typo3_cms	>= 14.0.0 < 14.3.3	14.3.3

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CWE-502